A deficiency in Vitamin B-6 can cause nerve symptoms that mimic carpal tunnel syndrome, and can also be a cause of depression. You shouldn't take a single B vitamin alone for long; if you need one, you need them all. They work together. What fixed my wrist pain was 100 mg of B-6, but I take the whole complex to avoid trouble. Anything left over is excreted in the urine. I don't mind having expensive urine if my wrist doesn't hurt.

Iherb...what a fabulous company! I research a lot and always find that NOW always has the application/mix that is needed. These Vitamin B's are the most powerful energy boosters,and will straighten out any minor B deficiencies I might have excellent!!Invaluable standing alone, but also necessary to take when correcting specific B deficiencies. Eg, vitamin B6 deficiency(line down the centre of tongue is an indicator), must have B2 in the same dosage, with the B complex as backup; as B vitamins are synergistic,if not balanced, a new deficiency in the other B vitamins can be caused.